Symbiosis of Cryogenic Treatment and Lubricants on the Wear Resistance of Tool Steel
Abstract
Cryogenic treatment and lubrication are used to improve the wear life of components made with tool steel. There is significant research about the effects of cryogenic treatment, but little reported about the impact of lubrication on wear of cryogenically treated tool steel. This study investigated the combined effect on wear of D2 and A2 tool steels, using a cross-cylinder wear tester. Without lubrication, cryogenic treatment improved wear resistance by 29.56% for D2, with a HRC hardness increase of 7.38%, and 46.32% of A2, with a HRC hardness increase of 4.93%. Lubrication on non-cryogenically treated samples improved wear resistance by 87.86 to 92.43% for D2, and 81.51 to 90.30% for A2 samples. Compared to non-cryogenically treated samples in dry wear test, the combination of cryogenic treatment and lubrication improved wear resistance ranging from 92.42 to near 100% for D2 and 88.54 to 86.75% for A2 samples. With lubrication, cryogenic treatment additionally improved wear resistance, on average, 6.09% for D2 and 6.66% for A2 samples, when compared to lubricated non-cryogenic samples. Therefore, the use of lubricant and cryogenic treatment has a positive impact on improving wear resistance for D2 and A2 tool steels, compared to the same composition of tool steel that has either been cryogenically treated or lubricated, but not both.
Degree
M.S.M.E.
Advisors
Abramowitz, Purdue University.
Subject Area
Mechanical engineering
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